Constructed from light, durable nylon mesh, the wallet uses RFID technology to protect against radio frequency identification that could otherwise steal your information. The wallet has ample space for cards and an identification card window for easy display. It's the perfect portable safe for travel and everyday use.RFID technology - protects against radio frequency identification to keep your data and finances secureDurable nylon mesh fabric4 x card slots and identification card windowElasticated bandDimensions: 10cm x 7.25cm (folded)Recommended activity - travel / everyday